
public class User {
    private int id;
    private String name;
    private String password;
    private int age; 

    public User(){

    }
    public User(int id,String name,String password,int age){
        this.id =id;
        this.name =name;
        this.password =password;
        this.age =age;
    }
    @Override
    public String toString(){
        return "User [id="+id+
        ",name="+name+
        ",password="+password+
        ",age="+age+"]";
    }
}